Smith EP, Witherspoon DP, Bhargava S, Bermudez JM. Cultural values and behavior among African American and European American children. J Child Fam Stud. 2019 May 1;28:1236-49.
Mangel AW, Fehnel SE. End points in irritable bowel syndrome. Expert Rev Gastroenterol Hepatol. 2011 Jun 1;5(3):293-5.
Dreyer NA, Loughlin JE, Rothman KJ. Epidemiologic safety surveillance of cellular telephones in the US. Radiat Prot Dosimetry. 1999 Jun;83(1):159-63.